WebMath-Ultra: 494,060 rows, 5 shards (regex + containment>=0.5)

README.md

@@ -0,0 +1,26 @@
+---
+license: other
+task_categories:
+- text-generation
+language:
+- en
+tags:
+- math
+- filtered
+- finemath
+- arithmark-containment
+---
+
+# WebMath-Ultra
+
+FineMath rows that survived:
+- whole-word drop of `post`, `posted`, `algebra` (case-insensitive)
+- any row containing `#` or `]`
+- any row containing emojis
+- **containment similarity >= 0.5** against at least one
+  row of `AxiomicLabs/Arithmark-3.0`
+
+Containment(doc, ref) = |tokens(doc) ∩ tokens(ref)| / |tokens(ref)|, max over refs.
+C++ inverted-index kernel (`g++ -O3 -std=c++17`), streamed from the Hub with
+no local cache, 2 scoring threads, 5 parquet shards
+(494,060 rows).

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+size 318303196

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